Fix module.rst: replace invalid :option: role with literal du -B

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: timlnx

docsite/source/conf.py

@@ -105,7 +105,6 @@
 # a list of builtin themes.
 if _RTD_THEME:
     html_theme = "sphinx_rtd_theme"
-    html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]
 else:
     html_theme = 'default'
 

docsite/source/module.rst

@@ -902,7 +902,7 @@ argument or option should be interpreted as.
    A feature found in many command-line utilities is the ability to
    specify some kind of file size using a string which roughly
    describes some kind of parameter. For example, let's look at the
-   :program:`du` (disk usage) command. Invoking it as :option:`du -B`
+   :program:`du` (disk usage) command. Invoking it as ``du -B``
    allows one to specify a desired block-size scaling factor in
    printed results.